And since Windows 10 will be supported until 2025, those who have older processors (including myself) have nothing to worry about.  By the time Windows 10 reaches end of life, any machine I have, including this one with an i7-4700MQ, will be over 10 years old and surely in need of replacement.

What follows is pure speculation on my part, but I won't be shocked if Windows 10 support ends up being extended past its original end of life date since there are a number of very recent hardware, as of this writing, that can't be upgraded to Windows 11, and that won't be ready for the recycling bin by 2025.
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Brian - Windows 10, 64-Bit, Version 21H1, Build 19043

The poor wish to be rich, the rich wish to be happy, the single wish to be married, and the married wish to be dead.

       ~ Ann Landers